UNIX System Administrator Jobs in Arlington, VA

Drive the management and support of Federal Physical Security systems, ensuring high performance and availability. Lead technical initiatives while liaising with clients and maintaining top-notch serv...

Join our dynamic team as a System Administrator, where you will support complex Federal Physical Security Systems. Collaborate with technical and non-technical clients to ensure high-standard service...

Empower collaboration and innovation by supporting systems integration tasks, engaging with counterparts, and ensuring seamless dataflows within complex projects. Drive operational excellence in a dyn...

Unlock potential by supporting system integration and design tasks with collaborative teams, validating systems, and ensuring seamless data flows across SIGINT systems and components...

Contribute to critical infrastructure solutions by supervising system operations, optimizing performance, and ensuring quality support. Engage with innovative technologies to enhance user experience a...

Empower your career by managing SharePoint infrastructures through upgrades, administration, and support. Collaborate across teams to enhance user experiences and ensure system integrity while maintai...

Grow your career with a strategic leadership role managing end-user device support, enhancing security and performance while overseeing a dedicated team in a global enterprise environment for lasting...

Optimize mission-critical IT systems while ensuring secure, reliable operations. Collaborate with cross-functional teams to implement change management and address vulnerabilities in a federal environ...

Grow your career with hands-on management of unified communications and IT infrastructure, supporting vital services for over 120,000 users across diverse DoD sites. Drive collaboration and enhance pe...

Engineer innovative IT solutions that enhance system performance and reliability. Join a team dedicated to maintaining server health, ensuring cybersecurity compliance, and supporting mission-critical...

Join a team that's driving innovation in cloud initiatives and systems engineering. Leverage your Linux expertise to enhance mission-critical identity management systems and support seamless operation...

Join our team and take ownership of optimizing Oracle PeopleSoft database environments, ensuring performance and security while supporting enterprise-wide human resources systems. Drive innovation and...

Support our dynamic R&D team by maintaining and enhancing the ServiceNow platform, ensuring security compliance while balancing system administration and software development. Drive operational effici...

Advance IT security and efficiency by designing and managing a robust VMware infrastructure. Collaborate with teams to enhance system performance and mentor junior staff, supporting critical initiativ...

Lead the management and implementation of IT systems, focusing on security patches and user access. Collaborate within a small team to ensure operational excellence and data integrity, while supportin...

Join a dynamic team as you manage and optimize computer networks, ensuring efficient performance and robust security in a collaborative environment while providing top-notch technical support and prob...

Pioneer mission-critical infrastructure management, overseeing enterprise Linux systems and VMware environments. Collaborate with engineering teams to ensure high availability and security, all while...

Join a team that's dedicated to ensuring the security and functionality of critical IT systems. This role encompasses system administration, user support, and operational sustainment for classified en...

The Intermediate Network Administrator will support large-scale migration and operations for a high-profile DOD contract, focusing on planning, designing, and evaluating network components. Responsibi...

Contribute to ITOM excellence by managing ServiceNow platforms, ensuring data integrity, and optimizing integrations in compliance with federal standards. Collaborate with teams to enhance system perf...

Champion a robust Active Directory infrastructure, ensuring operational stability, security, and performance in a 24x7 environment. Collaborate across teams to support enterprise services while adheri...

Provide comprehensive technical support for systems and network troubleshooting while mentoring junior staff and ensuring efficient operation of cloud infrastructure. Engage with users to resolve issu...

Develop your expertise in technical support as you troubleshoot network, desktop, and systems issues. Engage with users worldwide, ensuring cloud infrastructure reliability, while mentoring less-exper...

Join a skilled infrastructure team as a Senior System Administrator, leveraging your Windows expertise to design, maintain, and optimize cutting-edge systems and networks in complex environments, whil...

Contribute to IT excellence by managing helpdesk support, enhancing documentation standards, and driving Tier 2 systems administration across diverse SaaS platforms, fostering a collaborative environm...